package cn.tedu.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

/**
 * @Author Justin Parker
 * @Date 2024/7/30 0030 11:03
 * @Version 1.0
 */
public class JDBCDemo01 {
    public static void main(String[] args) throws ClassNotFoundException, SQLException {
       /*
        1.加载数据库驱动
        2.创建数据库连接对象
        3.创建执行SQL语句的对象
        4.执行SQL语句
        5.断开数据库连接
        */
        //1. 加载数据库驱动
        Class.forName("com.mysql.cj.jdbc.Driver");

        //2.创建数据库连接对象: .var +回车
        Connection connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        //3.创建执行SQL语句的对象
        Statement statement = connection.createStatement();
        //4.执行SQL语句
        // 接受用户输入：
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名：");
        String username = scanner.nextLine();
        System.out.println("请输入密码：");
        String password = scanner.nextLine();
        System.out.println("请输入昵称：");
        String nickname = scanner.nextLine();
        System.out.println("请输入年龄：");
        Integer age = scanner.nextInt();
        // 字符串拼接方式执行SQL语句
        String sql = "insert into userinfo(username,password,nickname,age)" +
                "value('"+username+"','"+password+"','"+nickname+"',"+age+")";
        int i = statement.executeUpdate(sql);

        //5.断开数据库连接
        connection.close();

    }
}
